1. Why the 2025 GST Changes Matter to Real Estate
The real estate sector feels the impact of GST in two ways:
- Direct GST on the sale of under-construction properties.
- GST on construction inputs (materials and services) that affect developer costs.
The 2025 reforms address both areas. The Council has moved to a simpler rate structure and reduced GST on several construction inputs, which should lower developer costs and, over time, help moderate housing prices.

2. What Changed — Quick List
- Two-slab system (GST 2.0): Simplified slabs (5% and 18% for most items) replace the older 5/12/18/28 structure.
- Lower GST on key construction materials: Cement, marble, granite, bricks, and other inputs now attract lower GST, reducing project costs.
- Residential GST rates unchanged in structure:
- 1% for affordable homes (subject to carpet-area and price thresholds).
- 5% for other residential units.
- Both rates apply without ITC. Ready-to-move homes with completion/occupancy certificates remain outside GST.
- Process & administrative reforms: Auto refunds, pre-filled returns, simplified registration for certain suppliers, and an operational Appellate Tribunal.
3. How the Rate Changes Translate into Real Money
Example 1 — GST on an under-construction flat:
- Flat price = ₹50,00,000
- At 5% GST → ₹2,50,000 GST
- At 1% GST → ₹50,000 GST
- Buyer saving if classified as “affordable” = ₹2,00,000
Example 2 — Savings on construction materials:
- A project spends ₹1 crore on cement.
- With GST reduced from 28% to 18%, the tax outgo drops by about ₹10 lakh.
- This is a direct saving for developers, which may be passed on to buyers depending on market conditions.
4. Likely Sectoral Impacts
invests Homebuyers
- Under-construction homes: GST continues to apply at 1% or 5%. Lower input GST should ease prices gradually, depending on competition and builder pricing.
- Ready-to-move-in homes: No GST, only stamp duty and registration charges.
For Developers
- Lower input GST improves margins and reduces project costs.
- Builders may need to renegotiate contracts with suppliers to reflect lower tax rates.
For Commercial Real Estate
- Input cost savings also benefit office spaces and retail projects.
- However, ITC rules and compliance requirements remain complex.
5. Important Caveats & What to Watch For
- Implementation timing: The changes are effective from 22 September 2025. Contracts and invoices before this date may not get the benefit.
- No ITC for residential buyers: The 1% and 5% rates are without ITC, meaning buyers cannot claim credit and developers cannot pass ITC to them.
- State levies still apply: Stamp duty, registration fees, and guidance values may dilute the benefit of reduced GST.
6. Practical Checklist
Investor Homebuyers
- Ask builders for a clear GST breakup in your payment schedule.
- Prefer ready-to-move-in homes to avoid GST altogether.
- Verify affordable-housing eligibility (carpet area and price thresholds).
Investment For Developers
- Update cash flow and project costing models to include reduced material taxes.
- Rework contracts with suppliers to reflect new GST rates.
- Ensure billing systems comply with the new slab structure.
For Tax & Finance Teams
- Review transitional rules for projects spanning before and after September 2025.
- Track official CBIC notifications for detailed definitions and exceptions.
- Watch how ITC treatment evolves, especially for commercial projects.
Final Takeaways
- The GST 2.0 simplification and reduced taxes on construction materials are positive for housing affordability.
- Under-construction properties remain subject to GST at 1% and 5%, while ready-to-move homes are exempt.
- Developers and buyers alike should consult tax advisors to understand how these reforms affect specific projects, especially regarding transitional rules.
- Expect gradual benefits rather than overnight price drops, as savings depend on how builders pass on reduced costs and how states manage stamp duty and registration charges.




